Stable fan blade structure of industrial fan

Abstract

The utility model belongs to the technical field of industrial fan application, in particular to a stable fan blade structure of an industrial fan, which comprises a fan blade body, the fan blade body comprises a fan blade upper plate and a fan blade lower plate, the fan blade upper plate and the fan blade lower plate are both bent downwards to be arc-shaped, and a fillet is formed at the joint of the left end and the right end of the fan blade upper plate and the fan blade lower plate. Two grooves are formed in a lower plate of the fan blade, partition plates are welded to the interior of the fan blade to partition the fan blade to form cavities, and the cavities are the first cavity, the second cavity and the third cavity which are sequentially arranged from left to right. According to the stable fan blade structure of the industrial fan, zinc-magnesium-aluminum materials are used, the fan blades have more excellent corrosion resistance and fatigue resistance, the weight of the fan can be reduced through the inner cavity, and the operation efficiency of the fan is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial fans, in particular to a stable fan blade structure of an industrial fan. Background Art

[0002] Industrial fans are ventilation devices designed for large spaces. They typically have a large diameter and operate at low speeds, creating horizontal airflow near the ground to promote air circulation and mixing. The design and technological development of industrial fans has evolved from traditional geared motors to high-efficiency permanent magnet motors. This change has brought improvements in performance and efficiency, but most industrial fans on the market have some problems: improper design causes airflow disturbances to conflict with the fan blade surface, reducing fan efficiency; and blade materials are not strong enough or the structural design is unreasonable, resulting in the fan being unable to withstand the stress and vibration during long-term operation, thus affecting the fan's durability and lifespan. Utility Model Content

[0003] In order to solve the problems mentioned in the above background technology, a stable fan blade structure for an industrial fan is proposed.

[0004] The technical solution of the present utility model: a stable fan blade structure of an industrial fan, comprising a fan blade body, wherein the fan blade body comprises a fan blade upper plate and a fan blade lower plate, wherein the fan blade upper plate and the fan blade lower plate are both bent downward into an arc, and fillets are formed at the left and right ends of the fan blade upper plate and the fan blade lower plate, and the fan blade lower plate is provided with two grooves, and a partition plate is welded inside the fan blade to partition and form a cavity, and a reinforcing rib is provided inside the cavity. The fan blade as a whole adopts an integrated structure, and the partition plate comprises a first partition plate and a second partition plate, wherein the first partition plate is located between the first cavity and the second cavity, and the second partition plate is located between the second cavity and the third cavity, and an eight-shaped shape is formed between the first partition plate and the second partition plate, which are respectively welded to the fan blade upper plate and the fan blade lower plate.

[0005] Preferably, the fan blades are made entirely of zinc-magnesium-aluminum material.

[0006] Preferably, the angle between the reinforcing rib and the horizontal plane is 56 degrees, and the two ends of the reinforcing rib are respectively connected to the upper plate and the lower plate of the fan blade.

[0007] Preferably, the arc-shaped surface on the right side of the lower plate of the fan blade is set as the lift part.

[0008] Preferably, the cavity further includes a first cavity, a second cavity and a third cavity, and the cavities are arranged in sequence from left to right. The first cavity and the second cavity are separated by a first partition plate, and the second cavity and the third cavity are separated by a second partition plate.

[0009] Preferably, the groove includes a first groove and a second groove, and the first groove and the second groove are both arranged on the lower plate of the fan blade.

[0010] Preferably, the first groove is located in the middle of the lower plate of the fan blade of the first cavity, and the second groove is located on the right side of the lower plate of the fan blade of the second cavity.

[0011] Compared with the prior art, the utility model provides a stable fan blade structure for an industrial fan, which has the following beneficial effects:

[0012] In terms of structure, the fan blades of this product use an integrated structure, with internal welded partition plates forming a triangular structure to enhance the overall stability of the fan blades. Reinforcing ribs are added to improve the load capacity of the fan blades. The designed grooves and lift parts maximize the conversion efficiency of air kinetic energy, provide greater air volume and reduce noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0014] Fig. 1 It is a structural schematic diagram of an embodiment of the present utility model.

[0015] Fig. 2 This is a three-dimensional diagram of the fan blades according to an embodiment of the present invention.

[0016] Fig. 3 It is the front view of the embodiment of the present utility model.

[0017] Reference numerals

[0018] 1- Upper blade plate; 2- Reinforcement rib; 3- First partition plate; 301- Second partition plate; 4- Lower blade plate; 5- First groove; 501- Second groove; 6- Lifting part; 7- First cavity; 701- Second cavity; 702- Third cavity; 8- Mounting hole; 9- Metal rod; 10- Rotating plate; 11- Motor; 12- Connecting plate DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention.

[0021] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, article, or apparatus. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0024] like Figs. 1 to 3As shown, a stable fan blade structure of an industrial fan includes a fan blade body, and the fan blade body includes a fan blade upper plate 1 and a fan blade lower plate 4, and the fan blade upper plate 1 and the fan blade lower plate 4 are both bent downward into an arc shape, and the left and right ends of the fan blade upper plate 1 and the fan blade lower plate 4 are connected to form fillets, and an eight-shaped shape is formed between the first partition plate 3 and the second partition plate 301, which are respectively welded to the fan blade upper plate 1 and the fan blade lower plate 4, and a triangular structure is formed inside the fan blade, so that the fan blade can effectively resist deformation and external twisting force, increase strength and stability, and at the same time, the cavity formed inside due to the triangular structure reduces the weight and cost-effectiveness of the fan blade, and improves the air volume and efficiency of the fan, and the cavities are arranged from left to right in order as the first cavity 7, the second cavity 701 and the third cavity 702, and a reinforcement is provided in the first cavity 7. The rib 2 improves the load capacity of the fan blade. The angle between the reinforcing rib 2 and the horizontal plane is 56 degrees. The two ends of the reinforcing rib 2 are respectively connected to the upper plate 1 and the lower plate 4 of the fan blade. The groove includes a first groove 5 and a second groove 501. The first groove 5 and the second groove 501 are both arranged on the lower plate 4 of the fan blade. The first groove 5 is located in the middle of the lower plate 4 of the fan blade in the first cavity 7, and the second groove 501 is located on the right side of the lower plate 4 of the fan blade in the second cavity 701. The entire arc-shaped surface of the lower plate 4 from the lower plate 4 below the second cavity 701 to the lower plate 4 of the third cavity 702 is set as a lift part 6 to improve the air volume and energy efficiency of the fan. The mounting hole 8 on the lower plate 4 of the fan blade is fixed to the rotating plate 10 using a connecting plate 12. The motor 11 is connected to the bottom of the rotating plate 10, and the metal rod 9 is connected in the middle of the rotating plate 10.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

Claims

1. A stable blade structure for an industrial fan, characterized by: It includes a fan blade body, which includes an upper fan blade plate and a lower fan blade plate. The upper fan blade plate and the lower fan blade plate are both bent downward into an arc shape. The left and right ends of the upper fan blade plate and the lower fan blade plate are connected to form fillets. The lower fan blade plate is provided with two grooves. Partition plates are welded inside the fan blade to partition and form a cavity. Reinforcing ribs are provided inside the cavity. The fan blade as a whole adopts an integrated structure. The partition plate includes a first partition plate and a second partition plate. The first partition plate is located between the first cavity and the second cavity, and the second partition plate is located between the second cavity and the third cavity. An eight-shaped shape is formed between the first partition plate and the second partition plate, which are respectively welded to the upper fan blade plate and the lower fan blade plate.

2. The stable blade structure of an industrial fan according to claim 1, characterized in that: The fan blades are made entirely of zinc-magnesium-aluminum material.

3. The stable blade structure of an industrial fan according to claim 1, characterized in that: The angle between the reinforcing rib and the horizontal plane is 56 degrees, and the two ends of the reinforcing rib are respectively connected to the upper plate and the lower plate of the fan blade.

4. The stable blade structure of an industrial fan according to claim 1, characterized in that: The arc-shaped surface on the right side of the fan blade lower plate is set as a lift portion.

5. The stable blade structure of an industrial fan according to claim 1, characterized in that: The cavity also includes a first cavity, a second cavity and a third cavity, and the cavities are arranged in sequence from left to right. The first cavity and the second cavity are separated by a first partition plate, and the second cavity and the third cavity are separated by a second partition plate.

6. The stable blade structure of an industrial fan according to claim 1, characterized in that: The groove includes a first groove and a second groove, and the first groove and the second groove are both arranged on the lower plate of the fan blade.

7. The stable blade structure of an industrial fan according to claim 6, characterized in that: The first groove is located in the middle of the fan blade lower plate of the first cavity, and the second groove is located on the right side of the fan blade lower plate of the second cavity.

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